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connecting gastester and accessing bypass screw

Started by Episteme, May 16, 2011, 11:17:56 AM

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Episteme

May 16, 2011, 11:17:56 AM
1) I've just ordered a gunson gastester (DesmoTimes).  Does it come with fittings to attach it to the exhaust bungs? If not, what part(s) do I need?

2) The air-bypass screws on the throttle-body are apparently covered up with some sort of hard plastic… what gives? Should I just (carefully) drill it out?

Thanks,

Sean

ducatiz

#1
May 16, 2011, 11:21:39 AM
Quote from: Episteme on May 16, 2011, 11:17:56 AM
1) I’ve just ordered a gunson gastester (DesmoTimes).  Does it come with fittings to attach it to the exhaust bungs? If not, what part(s) do I need?

2) The air-bypass screws on the throttle-body are apparently covered up with some sort of hard plastic… what gives? Should I just (carefully) drill it out?

Thanks,

Sean


i fabricated a setup with a 10x1 screw drilled out and a metal pipe brazed to it. 

that's a plastic plug.  it is meant to be expendable or you can carefully use an exacto and prise it out.  i just shoved a small flathead into mine and tossed it out. 
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Episteme

#2
May 16, 2011, 12:47:30 PM
Good to know, thanks.

Just one thing though - I seem to recall the exhaust plugs being M10x1.25 (25ft/lb torque, with a bit of anti-seize), as opposed to M10x1   No?

ducatiz

#3
May 16, 2011, 01:32:05 PM
Quote from: Episteme on May 16, 2011, 12:47:30 PM
Good to know, thanks.

Just one thing though - I seem to recall the exhaust plugs being M10x1.25 (25ft/lb torque, with a bit of anti-seize), as opposed to M10x1   No?

i am pretty sure mine wsa 10x1 but i could be wrong.  it's been a while since i made that tool.  i used a 2 or 3 inch bolt, put it in a vise and drilled it down the center.  it was a huge pain in the ass but it works.  counterbore the head and braze on a metal pipe.  it works.
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Episteme

#4
May 16, 2011, 05:13:27 PM
Makes sense - thanks for that.

Thankfully, Ottawa Fastener Supply is not far from me - shouldn't be much to find the right bolt. Should have it assembled by the time the tester arrives. A drill press and some mineral oil should make that job a bit easier... can't imagine how you managed with a vice and a hand drill.

ducatiz

#5
May 16, 2011, 05:30:49 PM
Lol I didn't mean a band drill! 
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

ducatiz

#6
May 16, 2011, 05:31:52 PM
Argh Hand ..
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

2 Wheel Wanderer

#7
May 17, 2011, 11:27:04 PM
I've got a Gunston Gastester as well, it doesn't come with the fittings. I bought the Ducati ones for $10 a piece. I've got a M620, the part # for mine was 88713.1010, yours may or may not be different. Check out a parts manual from Ducati, it should be on the 9th or 10th page and it's labeled Union for exhaust gas suction. I can throw up a couple of pics if you want.

ducatiz

#8
May 18, 2011, 04:50:14 AM
Quote from: 2 Wheel Wanderer on May 17, 2011, 11:27:04 PM
I've got a Gunston Gastester as well, it doesn't come with the fittings. I bought the Ducati ones for $10 a piece. I've got a M620, the part # for mine was 88713.1010, yours may or may not be different. Check out a parts manual from Ducati, it should be on the 9th or 10th page and it's labeled Union for exhaust gas suction. I can throw up a couple of pics if you want.

I wish I had known about that...!
Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.

Staggerlee

#9
May 18, 2011, 10:18:16 AM
My M900 uses the same test fittings, P/N 88713.1010; they're basically about 12" of copper tubing brazed into the correct size fitting.

ducatiz

#10
May 18, 2011, 10:33:23 AM
Quote from: Staggerlee on May 18, 2011, 10:18:16 AM
My M900 uses the same test fittings, P/N 88713.1010; they're basically about 12" of copper tubing brazed into the correct size fitting.

That's exactly what mine is except I used shorter tubing and made the extension wider with a reducer.

Check out my oil filter forensics thread!                     Offended? Click here
"Yelling out of cars, turning your speakers out the window to blast your music onto the street, setting off M-80 firecrackers, firing automatic weapons into the airâ€"these are all well and good. But none of them create a merry atmosphere of insouciance and bonhomie quite like a revving motorcycle.
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